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OLS Field Name OLS Field Data
Main Title Performance of Activated Sludge-Powdered Activated Carbon-Wet Air Regeneration Systems.
Author Deeny, K. J. ; Heidman, J. A. ; Condren, A. J. ;
CORP Author Montgomery (James M.) Consulting Engineers, Inc., Pasadena, CA. ;Junkins Engineering, Inc., Morgantown, PA.;Environmental Protection Agency, Cincinnati, OH. Office of Research and Development.
Publisher Mar 90
Year Published 1990
Report Number EPA-68-03-3429; EPA/600/2-90/012;
Stock Number PB90-188889
Additional Subjects Activated carbon treatment ; Water treatment plants ; Activated sludge process ; Sewage treatment ; Regeneration(Engineering) ; Sludge drying ; Waste treatment ; Waste disposal ; Waste water ; Water pollution ;
Library Call Number Additional Info Location Last
NTIS  PB90-188889 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 08/27/1990
Collation 83p
Abstract The investigation summarized in the report was undertaken to evaluate the performance of powdered activated carbon (PAC) technology used in conjunction with wet air regeneration (WAR) at municipal wastewater treatment plants. Excessive ash concentrations accumulated in the mixed liquor suspended solids (MLSS) at all facilities that relied on the WAR unit blowdown for ash control. A variety of ash control methods have been implemented and are documented. The nitric acid test for PAC was shown to substantially overestimate PAC concentrations. PAC losses across WAR or the desirability and economics of recovering the volatile suspended solids (VSS) exiting the WAR reactor could not be quantified. Other areas covered in the report include adsorptive capacity of the recycled material, tertiary filter performance, metals accumulation, oxygen transfer, operation and maintenance concerns and economic considerations. The report includes Appendices submitted by the system manufacturer that dispute many of the report conclusions and provide alternative explanations for some of the data obtained.
Supplementary Notes Prepared in cooperation with Junkins Engineering, Inc., Morgantown, PA. Sponsored by Environmental Protection Agency, Cincinnati, OH. Office of Research and Development.
NTIS Title Notes Final rept.
Category Codes 50B#; 68C; 68D
NTIS Prices PC A05/MF A01
Primary Description 600/19
Document Type NT
Cataloging Source NTIS/MT
Control Number 014419033
Origin NTIS
Type CAT